24244230221 has 4 divisors (see below), whose sum is σ = 24245441532. Its totient is φ = 24243018912.

The previous prime is 24244230211. The next prime is 24244230253. The reversal of 24244230221 is 12203244242.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5368492900 + 18875737321 = 73270^2 + 137389^2 .

It is a cyclic number.

It is not a de Polignac number, because 24244230221 - 2¹⁴ = 24244213837 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (24244230211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 575120 + ... + 615833.

It is an arithmetic number, because the mean of its divisors is an integer number (6061360383).

Almost surely, 2^24244230221 is an apocalyptic number.

It is an amenable number.

24244230221 is a deficient number, since it is larger than the sum of its proper divisors (1211311).

24244230221 is a wasteful number, since it uses less digits than its factorization.

24244230221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1211310.

The product of its (nonzero) digits is 6144, while the sum is 26.

Adding to 24244230221 its reverse (12203244242), we get a palindrome (36447474463).

The spelling of 24244230221 in words is "twenty-four billion, two hundred forty-four million, two hundred thirty thousand, two hundred twenty-one".